Spoke type force measuring wheel pair based on sensor

Abstract

The invention relates to a spoke type force measuring wheel pair based on a sensor, which comprises a force measuring wheel, a connecting shaft, a sensor and a clamping device, wherein the force measuring wheel has a uniform thickness spoke type structure which can improve the measuring sensitivity. The invention overcomes the shortcomings of the surface pasted strain gage caused by the traditional force measuring wheel pair, only requiring to tightly clamp the sensor on the force measuring wheel spoke through the clamping device after being processed in a precise workshop. The vertical and lateral forces loaded by the force measuring wheel can be dynamically measured at real time through a pressure method and a shearing force method. The force measuring wheel pair of the invention is convenient to assemble and disassemble, is easy to maintain and exchange, greatly increases the measuring precision, and avoids the known shortcomings that the force measuring wheel pair is difficult to manufacture, difficult to maintain and repair and is expensive to manufacture.

Description

technical field [0001] The invention relates to a sensor-based spoke type force measuring wheel set. Background technique [0002] The research on the dynamic wheel-rail force between the rolling stock and the track is an important basis for the rational design of the rolling stock and track structural components. The wheel-rail force can make the rolling stock run safely on the track, but it may also cause unhealthy vehicle derailment and serious wheel damage. Wear and wheel vibration etc. In order to further grasp the interaction force relationship between the wheel and the rail, domestic and foreign experts have done a lot of research, among which the real-time dynamic measurement of the wheel-rail force by using the force-measuring wheel set is a direct and reliable method. [0003] At present, the force measuring wheel set used for testing is divided into axonometric method and wheel measurement method. The axonometric method is to paste strain gauges on a sensitive ar...

AI Technical Summary

Problems solved by technology

It is not difficult to see that no matter what kind of force-measuring wheel set is currently using the method of pasting strain gauge bridges, this method requires that the position and angle of the pasting strain gauges must be very accurate, and because a force-measuring wheel set bridge is composed of Composed of many strain gauges, if there is a deviation or damage to a certain strain gauge sticking position, it will affect the entire test bridge, and even individual strain gauge damage may cause the entire force measuring wheel set to be unavailable, so this force measurement The manufacturing process of the wheel set is more difficult, the later maintenance is more difficult, and the manufacturing and maintenance costs are higher

Since the known force-measuring wheel sets use the pressure method and the bending moment method to measure the lateral force and vertical force respectively, the test accuracy is not high

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